WEKO3
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We previously reported that the cytoplasmic-only localization of maspin is significantly correlated with unfavorable prognosis in patients with lung adenocarcinoma (LUAD). To clarify whether maspin in LUAD acts as a tumor promoter or suppressor, we examined the subcellular localization-dependent biological functions of maspin in human LUAD cell lines. Methods: The expression levels and subcellular localization of maspin were investigated by performing immunoblotting and immunofluorescence in human LUAD cell lines (PC-9, A549, NCI-H23, RERF-LCKJ) and human bronchial epithelial cell line (BEAS-2B). We then established stable cell lines overexpressing maspin (A549-maspin and RERF-LC-KJ-maspin) and investigated their subcellular localization. Cell invasion assays of these cell lines were performed to examine their invasiveness. Moreover, the mRNA expression levels between epithelial cell markers (E-cadherin) and mesenchymal cell markers (N-cadherin and vimentin) were compared. 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Investigation of the Subcellular Localization-Dependent Anti- or Pro-Tumor Functions of Maspin in Human Lung Adenocarcinoma Cell Line
https://repository.lib.tottori-u.ac.jp/records/4629
https://repository.lib.tottori-u.ac.jp/records/4629bdba72e2-360c-400c-9511-37bc2cbd40b0
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-03-09 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Investigation of the Subcellular Localization-Dependent Anti- or Pro-Tumor Functions of Maspin in Human Lung Adenocarcinoma Cell Line | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | lung adenocarcinoma | |||||
キーワード | ||||||
主題 | maspin | |||||
キーワード | ||||||
言語 | en | |||||
主題 | lung adenocarcinoma | |||||
キーワード | ||||||
言語 | en | |||||
主題 | maspin | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
坂部, 友彦
× 坂部, 友彦× 梅北, 善久× Matsushige, Takahiro |
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著者所属(英) | ||||||
en | ||||||
Department of Pathology, School of Medicine, Faculty of Medicine, Tottori University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Pathology, School of Medicine, Faculty of Medicine, Tottori University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Pathology, School of Medicine, Faculty of Medicine, Tottori University | ||||||
抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Background: Mammary serine protease inhibitor (maspin) is well known as a tumor suppressor gene in several types of cancers and its nuclear localization is essential for its tumor-suppressive function. We previously reported that the cytoplasmic-only localization of maspin is significantly correlated with unfavorable prognosis in patients with lung adenocarcinoma (LUAD). To clarify whether maspin in LUAD acts as a tumor promoter or suppressor, we examined the subcellular localization-dependent biological functions of maspin in human LUAD cell lines. Methods: The expression levels and subcellular localization of maspin were investigated by performing immunoblotting and immunofluorescence in human LUAD cell lines (PC-9, A549, NCI-H23, RERF-LCKJ) and human bronchial epithelial cell line (BEAS-2B). We then established stable cell lines overexpressing maspin (A549-maspin and RERF-LC-KJ-maspin) and investigated their subcellular localization. Cell invasion assays of these cell lines were performed to examine their invasiveness. Moreover, the mRNA expression levels between epithelial cell markers (E-cadherin) and mesenchymal cell markers (N-cadherin and vimentin) were compared. Results: The expression of maspin in PC-9 cells was comparable to that in BEAS-2B cells, whereas its expression in A549, NCI-H23, and RERF-LC-KJ cells was decreased. The cell invasion capability of A549-maspin cells showing pancellular expression was significantly decreased compared with that of A549-control cells. By contrast, the cell invasion capability of RERF-LC-KJmaspin cells showing cytoplasmic-only expression was significantly increased compared with that of RERFLC-KJ-control cells. The mRNA expression levels of N-cadherin, but not E-cadherin and vimentin, in A549-maspin cells was significantly downregulated compared with that in A549-control cells. No significant differences in these markers were observed between RERFLC-KJ-maspin and RERF-LC-KJ-control cells. Conclusion: The invasive capability of LUAD cells is regulated by the intracellular localization of maspin. Clarification of the molecular mechanism underlying the subcellular localization-dependent function of maspin will promote a deeper understanding of LUAD development and progression. | |||||
書誌情報 |
Yonago Acta Medica en : Yonago Acta Medica 巻 65, 号 1, p. 44-52, 発行日 2022-02-22 |
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出版者 | ||||||
出版者 | Tottori University Medical Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05135710 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00892882 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.33160/yam.2022.02.006 | |||||
権利 | ||||||
権利情報 | (C) 2022 Tottori University Medical Press. | |||||
情報源 | ||||||
関連名称 | Yonago Acta Medica. 2022, 65(1), 44-52. doi:10.33160/yam.2022.02.006 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-1/65-1contents.html | |||||
関連名称 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-1/65-1contents.html | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.33160/yam.2022.02.006 | |||||
関連名称 | https://doi.org/10.33160/yam.2022.02.006 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
EISSN | ||||||
13468049 |